GB695232A - Improvements relating to the manufacture of cation exchangers - Google Patents
Improvements relating to the manufacture of cation exchangersInfo
- Publication number
- GB695232A GB695232A GB6655/51A GB665551A GB695232A GB 695232 A GB695232 A GB 695232A GB 6655/51 A GB6655/51 A GB 6655/51A GB 665551 A GB665551 A GB 665551A GB 695232 A GB695232 A GB 695232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitrous
- vapours
- gas
- oxygen
- nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/24—Carbon, coal or tar
Abstract
The process of the parent Specification is improved by employing an oxygen-containing gas containing "nitrous vapours," which phrase denotes any gas or vapour containing nitrogen in combination with oxygen such as nitric acid vapours or other gases containing oxides of nitrogen, particularly those containing nitric oxide. The proportion of nitrous vapour used is preferably less than 10 per cent by volume of the oxidizing-gas mixture. The heating period is reduced to from one-third to one-half of that previously needed. The process may be made cyclic by regaining the nitrous vapours from the discharged reaction gases, e.g. by absorbing them in sulphuric acid, desorbing the sulphuric acid by heating, and supplying the liberated nitrous vapours to the oxygen-containing gas in which the solid carbonaceous material is heated.ALSO:The process of the parent Specification is improved by employing an oxygen-containing gas containing "nitrous vapours," which phrase denotes any gas or vapour containing p nitrogen in combination with oxygen such as nitric acid vapours or other gases containing oxides of nitrogen, particularly those containing nitric oxide. The proportion of nitrous vapour used is preferably less than 10 per cent by volume of the oxidizing-gas mixture. The heating period is reduced to from one third to one half of that previously needed. The process may be made cyclic by regaining the nitrous vapours from the discharged reaction gases e.g. by absorbing them in sulphuric acid, desorbing the sulphuric acid by heating, and supplying the liberated nitrous vapours to the oxygencontaining gas in which the solid carbonaceous material is heated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL695232X | 1950-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB695232A true GB695232A (en) | 1953-08-05 |
Family
ID=19808853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6655/51A Expired GB695232A (en) | 1950-03-21 | 1951-03-20 | Improvements relating to the manufacture of cation exchangers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB695232A (en) |
-
1951
- 1951-03-20 GB GB6655/51A patent/GB695232A/en not_active Expired
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